Parallel plane shutter for LK breaker

A circuit breaker cubicle having a rear wall and a plate positioned at said rear wall, said circuit breaker cubicle having stationary connector members accessible at said plate in said rear wall, said plate at said rear wall having a plurality of openings registering individually with said connector members, the plurality of openings corresponding in position and number to said stationary connectors;

• said stationary connectors being arranged in two horizontal rows one of said rows comprising a plurality of upper connectors the other of said rows comprising a plurality of lower connectors;
• said openings in said plate registering with said connectors comprising corresponding upper openings and lower openings;
• and a pair of shutters slidably positioned at said plate, said shutters comprising an upper shutter and a lower shutter;
• said upper shutter having openings registrable with said upper openings in said plate for said upper connectors and said lower shutter having openings in said plate for said lower connectors;
• said shutters being positioned parallel to said plate and slidable with respect thereto;
• means for normally positioning said shutters in position where the openings therein are not in registry with the corresponding openings in said plate and therefore not in registry with said connector members;
• an actuator member carried within said cubicle located adjacent the position of said plate;
• said actuator member comprising a lever pivoted on a stationary portion of said cubicle;
• one end of said lever being connected to one of said shutters, the other end of said lever extending forwardly of said plate;
• a circuit breaker having an extension engageable with said actuator when said circuit breaker is moved toward the rear of said cubicle, said lever being rotated when said circuit breaker is moved into said cubicle toward the rear of said cubicle to move at least one of said shutters in a direction to register the openings in said shutter with the openings in said plate for said back connectors;
• and a link connection between said one shutter connected to said actuator and the other shutter;
• said link connection being pivotally mounted on stationary pivots on said plate with the opposite ends thereof being pivotally connected to said lower shutter and said upper shutter;
• the movement of said lower shutter in one direction causing the movement of the other shutter in the opposite direction thereby causing the shutters to move simultaneously when the actuator member is moved in one direction to expose the openings in said plate and make the connectors accessible;
• and movement of said shutters simultaneously toward each other blocking said openings in said plate.